Diangxiangyuan_Dikong_3ceng_renyidianxVVVVGauss090

boltzmann source code in matlab

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说明：  应用matlab实现对统计分析中的主成分分析方法，高效实现对输入变量的降低维数，同时(Application matlab realize the principal component analysis statistical analysis, efficient implementation of reduced dimensionality of the input variables, while)

用matlab实现对矩阵的双三次插值算法实现(Bicubic interpolation matlab realize)

一个粒子群优化算法的实例，对于初步学习者是一个不错的学习实例。(An example of particle swarm optimization algorithm for the initial learner is a good learning example. )

这是一个简单的FFT为无电位1 +1 +1 Ð 薛定谔方程的光束传播方法。如果该软件灵活，允许引入的术语（如果是极少数需要包括色散效应高阶导数）。例如，如果一个人渴望解决的一个方程的形式： （四/ dz的+ Ð ^ 2/dx ^ 2 - 0.25 * Ð ^ 3/dx ^ 3）== 0 Ÿ 它可以解决使用以下代码： Ž = linspace（0,1,512） x = linspace（-5,5,1024） psi0 =进出口（- x的。^ 2） Ð = D_lateral1D（十，2）-0.25 * D_lateral1D（十，3） 字段= LinearBPM（psi0，有D，Z） 凡D_lateral1D是一个函数，提供“取代”的微分算子。 这个函数是在一个非线性的BPM，我曾对（分步，谱方法等），将提交给我，当我完成他们的文件和组织功能更复杂的设置非常初期阶段。 (This is a simple FFT based beam propagation method for potential-free 1+1+1D Schrodinger equation. The software if flexible and allows to introduce high-order derivatives in the term (very handful if is needed to include dispersion effects). For example, if one desires to solve an equation in the form: (d/dz+ d^2/dx^2- 0.25*d^3/dx^3)Y == 0 It can be solved using the following code: z=linspace(0,1,512) x=linspace(-5,5,1024) psi0=exp(-x.^2) D=D_lateral1D(x,2)-0.25*D_lateral1D(x,3) field=LinearBPM(psi0,D,z) Where D_lateral1D is a provided function that "replaces" the derivative operator. This function is a very early stage in a more complex set of non-linear BPM functions that I have made (split-step, spectral methods, etc.) and I will submit them when I finish their documentation and organization. Sorry for my English, I m eager for your comments. )

说明：  采用MATLAB编写的GMDH软件，里面有三个.m程序，分别为训练、误差检测、预测输出。很好用。(GMDH using software written in MATLAB, which has three. M steps in the training, error detection, prediction output. Good use.)

说明：  这是matlab模拟二维及三维布朗运动的程序，并附了一张效果图。 (This is a matlab simulation of two-dimensional and three-dimensional Brownian motion process, with a piece of renderings.)

AC编码 好好数数够不够二十个字，嗯差不多了(AC coding)

matlab仿真PWM控制直流电机，仿真曲线还可以(matlab simulation of the PWM control of DC machine, the simulation curve can also)